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Tools/Win64/VTK/include/vtk-9.0/vtkExtractExodusGlobalTempo...

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C++

/*=========================================================================
Program: Visualization Toolkit
Module: vtkExtractExodusGlobalTemporalVariables.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkExtractExodusGlobalTemporalVariables
* @brief extract global temporal arrays generated by vtkExodusIIReader
*
* vtkExtractExodusGlobalTemporalVariables is intended to extract global
* temporal arrays generated by vtkExodusIIReader.
*
* Global temporal variables are special arrays that have values per timestep.
* vtkExodusIIReader can read these values for all timestep and provide them
* easily, thus avoiding the need to read all timesteps to extract these values
* over timesteps. A slight complication is with ParaView, where ParaView
* supports what are referred to as restarts i.e. instead of a single file
* having all timesteps, the timesteps are arbitrarily split among multiple
* files. For such cases, this filter needs to iterate over all the files to
* accumulate the data. Since there's no information about files or ability to
* request the upstream reader to read a particular file, this filter request
* specific timesteps using some smarts to determine which timestep to request
* and not simply loop over all timesteps.
*
* @sa vtkExodusIIReader, vtkExodusIIReader::GLOBAL_TEMPORAL_VARIABLE.
*/
#ifndef vtkExtractExodusGlobalTemporalVariables_h
#define vtkExtractExodusGlobalTemporalVariables_h
#include "vtkFiltersExtractionModule.h" // For export macro
#include "vtkTableAlgorithm.h"
#include <memory> // for std::unique_ptr
class VTKFILTERSEXTRACTION_EXPORT vtkExtractExodusGlobalTemporalVariables : public vtkTableAlgorithm
{
public:
static vtkExtractExodusGlobalTemporalVariables* New();
vtkTypeMacro(vtkExtractExodusGlobalTemporalVariables, vtkTableAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
protected:
vtkExtractExodusGlobalTemporalVariables();
~vtkExtractExodusGlobalTemporalVariables() override;
int FillInputPortInformation(int port, vtkInformation* info) override;
int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
int RequestUpdateExtent(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
//@{
/**
* These methods are used by vtkPExtractExodusGlobalTemporalVariables to
* synchronize internal state between ranks.
*/
void GetContinuationState(bool& continue_executing_flag, size_t& offset) const;
void SetContinuationState(bool continue_executing_flag, size_t offset);
//@}
private:
vtkExtractExodusGlobalTemporalVariables(const vtkExtractExodusGlobalTemporalVariables&) = delete;
void operator=(const vtkExtractExodusGlobalTemporalVariables&) = delete;
class vtkInternals;
std::unique_ptr<vtkInternals> Internals;
};
#endif